Is used: Oil and gas industry
Roll reinforced mastic materials
Roll reinforced mastic materials are designed to prevent corrosion when doing capital repair of the insulation covering (re-insulating) gas pipelines being laid. The materials are for pipes of a diameter up to 1420 mm inclusive; product temperature of up to 35 °Ñ or 50° for heat-resistant materials.
Ratio, measurement unit | Standard as per Technical Specifications | |||
---|---|---|---|---|
RAM |
DEKOM-RAM (heat-resistant) |
DONRAD-ARM |
ARMAS |
|
Appearance of the roll, assessed visually | Even edges. Obliquity, crowning and saddle shape are allowed, but no more than 5 mm across the width of the roll | Even edges. Obliquity, crowning and saddle shape are allowed, but no more than 5 mm across the width of the roll | Even edges. Obliquity, crowning and saddle shape are allowed, but no more than 5 mm across the width of the roll | Even edges. Obliquity, crowning and saddle shape are allowed, but no more than 5 mm across the width of the roll |
Appearance of the roll web, assessed visually | No blank spaces or foreign particles are allowed for the mastic | No blank spaces or foreign particles are allowed for the mastic | No blank spaces or foreign particles are allowed for the mastic |
No blank spaces or foreign particles are allowed for the mastic |
Plasticity on a beam, rounding radius =10mm, below the indicated temperature (°Ñ) | -20 | -20 | -20 | - |
Coating shear resistance, at a speed of 50 mm/min, t +23±2°Ñ, Mpa | Minimum 0,2 | Minimum 0,3 | - | - |
Water absorption capacity of the material after 1000 h in water at a temperature of +60±2 °Ñ, % | 5 | 5 | - | - |
Funginertness, maximum ball |
2 | 2 | - | - |